//
//  AppDelegate.m
//  UI2_设计模式
//
//  Created by dllo on 15/11/9.
//  Copyright (c) 2015年 dllo. All rights reserved.
//

#import "AppDelegate.h"
#import "RootViewController.h"

@interface AppDelegate ()

@end

@implementation AppDelegate

- (void)dealloc
{
    [_window release];
    [super dealloc];
}


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    
    //告诉delegate程序启动即将完成，程序准备要运行。（delegate实现这个方法时，要创建window对象，将程序内容通过window呈现给用户。）
    NSLog(@"程序启动即将完成,程序准备要运行");
    
    
    
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];
    [_window release];
    
    RootViewController *rootVC = [[RootViewController alloc] init];
    self.window.rootViewController = rootVC;
    [rootVC release];
    
    
    return YES;
}

- (void)applicationWillResignActive:(UIApplication *)application {
    
    
//    告诉delegate应用程序即将进入非活跃状态（暂停游戏、停止timer等）
    NSLog(@"将要进入后台");
    
    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
    // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}

- (void)applicationDidEnterBackground:(UIApplication *)application {
    
    
//    告诉delegate应用程序已经进入到了后台（存储用户数据、释放一些共享资源、停止timer等）
    NSLog(@"已经进入后台");
    
    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}

- (void)applicationWillEnterForeground:(UIApplication *)application {
    
    
//    告诉delegate应用程序即将进入前台（取消所有进入后台时暂停的任务）
    NSLog(@"将要进入前台");
    
    
    // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
}

- (void)applicationDidBecomeActive:(UIApplication *)application {
    
    
//    告诉delegate应用程序已经进入活跃状态（重新执行被暂停的任务）
    NSLog(@"变成活跃状态-已经进入前台");
    
    
    // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}

- (void)applicationWillTerminate:(UIApplication *)application {
    
    
    // 保存一些数据
    NSLog(@"将要终止");
    
    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}

@end
